Major Bitcoin Exchange Mt. Gox Collapses

Major bitcoin exchange website Mt. Gox went offline today, as trading on the Tokyo-based site came to a screeching halt. The site had disabled withdrawals earlier this month. The apparent closure has added to investor scrutiny over the virtual currency, which tumbled below $500 Tuesday after streaking to a high of over $1100 in December. Read more about Bitcoin's troubles.

Markets across the globe are mixed this morning; US futures are down slightly, while Asian stocks rose despite the drastic drop in the Chinese yuan, which fell to a more than three-year low. European stocks fell on the heels of tepid growth prospects over the next year, disappointing earnings results, and concerns over slowing Chinese growth. Crude oil fell nearly 1 percent to $101.81 a barrel. Gold dropped $3.70 to $1,334.

Las Vegas casino operator MGM Resorts announced intentions to spend $5 billion to $10 billion on a potential casino in Japan. The news comes a day after billionaire Sheldon Adelson announced that his Las Vegas Sands was also contemplating a similar investment in the country. Operating casinos is illegal in Japan, but many are expecting pressure from Tokyo's 2020 Olympics Games selection to boost a bid for legalization in an effort to boost tourism.